CVE-2026-6993: kratos · Unintended Intermediary
Affects kratosSource CVE Database V5
Public exploit available · CVSS 6.9 Medium.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 25 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| go-kratoskratos | Affected
| Fixed in– |
Gogithub.com/go-kratos/kratospkg:golang/github.com/go-kratos/kratosOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch identified by commit 0284a5bcf92b5a7ee015300ce3051baf7ae4718d is available and should be applied to affected versions (2.9.0, 2.9.1, 2.9.2) of go-kratos kratos to remediate this vulnerability. Patch status is not explicitly confirmed in a vendor advisory, so users should verify the patch application and monitor official vendor channels for updates.
Description
A security flaw has been discovered in go-kratos kratos up to 2.9.2. This impacts the function NewServer of the file transport/http/server.go of the component http.DefaultServeMux Fallback Handler. The manipulation results in unintended intermediary. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The patch is identified as 0284a5bcf92b5a7ee015300ce3051baf7ae4718d. Applying a patch is advised to resolve this issue.
References
- vuldb.com/vuln/359545 (opens in a new tab)
- vuldb.com/vuln/359545/cti (opens in a new tab)
- vuldb.com/submit/797099 (opens in a new tab)
- github.com/go-kratos/kratos/issues/3810 (opens in a new tab)
- github.com/go-kratos/kratos/pull/3814 (opens in a new tab)
- github.com/Yanhu007/kratos/commit/0284a5bcf92b5a7ee015300ce3051baf7ae4718d (opens in a new tab)
- github.com/go-kratos/kratos/ (opens in a new tab)